Shiftable carriage mechanism for incliner chair
US5054850A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1990 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Sep 26, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C1/0345
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Each of the left and right support assemblies for a shiftable carriage mechanism for an incliner chair includes a toggle drive subassembly that includes an upper toggle link which is pivotally connected to a mounting rail of a frame subassembly, a lower toggle link which is pivotally connected to a base member of the frame subassembly and a drive spring which is connected to the upper toggle link. The drive spring operates to position the toggle links in a locked condition when the support assembly is retracted and to drive the support assembly into an extended condition when the toggle links are manually rotated to an unlocked condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.